Parapsychology, replicability, and abuse of statistics
2021-07-28 17:37:54.621674+02 by Dan Lyke 0 comments
Slate Star Codex: The Control Group Is Out Of Control:
The idea was to plan an experiment together, with both of them agreeing on every single tiny detail. They would then go to a laboratory and set it up, again both keeping close eyes on one another. Finally, they would conduct the experiment in a series of different batches. Half the batches (randomly assigned) would be conducted by Dr. Schlitz, the other half by Dr. Wiseman. Because the two authors had very carefully standardized the setting, apparatus and procedure beforehand, “conducted by” pretty much just meant greeting the participants, giving the experimental instructions, and doing the staring.
The results? Schlitz’s trials found strong evidence of psychic powers, Wiseman’s trials found no evidence whatsoever.
via https://mobile.twitter.com/NLRG_/status/1419707766214696962